Hay-shock ventilator and safety stack-bottom.



PATENTED MAR. 31, 1903. S. P. WHITE & J, G. MILLER. HAY SHOCK VENTILATOR AND SAFETY STACK BOTTOM.

APPLIOATION FILED JAN. 5' 1903.

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HAY SHOCK VENTILATOR AND SAFETY STACK BOTTOM.

APPLICATION I'ILED JAN. 5. 1903. Y NO MODEL. 2 SHEETS-SHEET 2.

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. UNITED STATES STEPHEN P. \VIIITE AND JACOB O.

: PATENT OFFICE.

MILLER, or PULASKI, TENNESSEE.

HAY-SHOCK l/ENTILAIOR AND SAFETY STACK-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 724,356, dated March 31, 1903.

Application filed January 5. 1903. Serial No. 137,914. (No modeli) To all whom it may concern:

Be it known that we, STEPHEN P. WHITE and J AOOB C. MILLER, citizens of the United States, residing at Pulaski, in the county of Giles and State of Tennessee, have invented certain new and useful Improvements in Hay- Shock Ventilators and Safety Stack-Bottoms; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to' make and use the same.

Our invention is an improved hay-shock ventilator and stack-bottom, especially adapted for use in affording ventilation in shocks,

and stacks of hay made of pea-vines or other leguminous material and for supporting the base of a stack of such material slightly above and out of contact with the ground; and it consists in the peculiar construction and combination of devices hereinafter fully described and claimed.

The object of our invention is to provide a novel device of this character which is adapted to be readily set up and taken down and which is is also adapted to be folded very compactly for storage and transportation.

In the accompanying drawings, Figure 1 is a perspective view of a shock-ventilator and stack-bottom embodying our improvements, showing the same set up and in position .for use. Fig. 2 is a similar view showing the same folded. Fig. 3 is a perspective view of a modified form of our improved shock-ventilator and stack-bottom, showing the same set up and in position for use, Fig.4 is a similar view showing the same folded.

In the embodiment of our invention we provide a center post 1 of suitable length and thickness, the upper end of which is preferably pointed. To the sides of the said post, near the upper end thereof, are pivotally connected the upper ends of a plurality of supporting legs or bars 2, of which any suitable number may be employed. The same are here shown as connected to the center post on opposite sides of the latter in pairs by means of pivotal bolts 3. Each of the legs or bars 2 is provided at a suitable distance from its lower end with a supporting-arm 4. The said supporting-arms are pivotally connected at their inner ends to the legs or bars 2 by bolts 5 or any suitable devices and are adapt ed to be extended outwardly from the legs or bars 2 at substantially right angles with reference thereto and are also adapted to be folded up against said bars or legs. To support the supporting-arms when the latter are extended from the bars or legs 2 in position porting position and is folded u pwardly,when

the device is compactly disposed, as for transportation or storage,

' In Figs. 3 and 4 we show a modified construction of our improved ventilator and stack-former in which supplemental legs or bars 2 are employed, each of which is pivoted at its upper end to one of the legs or bars 2.. Each of the said supplemental legs or bars is also provided with a pivoted supporting-arm 4 and a stop 6 therefor, as

shown.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention-wil-lbe readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described our invention, what We claim as new, and desire to secure by Letters Patent of the United States, is-

1. A stack-bottom and ventilating device,

comprising a center post, a plurality of bars having their upper endspivotally connected thereto, supporting-arms pivotally connected to said bars, and stop devices on the latter to secure the said supporting-arms both when extended outwardly from the said bars and when folded against the same, substantially as described.

2. A stack-bottom and ventilating device of the class described comprising a center post, bars having their upper ends pivotally connected to the said post, supplemental bars having their upper ends pivotally connected to said bars; supporting-arms pivotally connected to said bars and supplemental bars and thereby adapted to be extended outwardly therefrom and folded thereagainst, and stop devices on said bars and supplemental bars to engage and retain said'pivoted r0 arms, both when the latter are in an extended and in a folded position, substantially as described.

In testimony whereof We have hereunto set our hands in presence of two subscribing witnesses.

} STEPHEN P. WHITE.- r J A0013 0. MILLER. Witnesses:

' J. M. GLADISH, J. W. DAVIS. 

